DescriptionSeeed Studio GPS Antenna Kit is a compact GNSS antenna kit for reTerminal DM GPS/4G module installations and other embedded positioning projects. It supports GPS, BD/BeiDou, and GLONASS navigation systems and is designed for stable satellite signal reception in compact edge and industrial devices.With RHCP polarization, 50 ohm impedance, active gain for GPS/BD/GLONASS, and a 2000mm RG174 RF cable, the Seeed Studio GPS antenna kit is useful when the antenna needs to be placed away from the cellular module or enclosure electronics.For the matching cellular accessory set, this GPS antenna kit can be considered alongside the compatible Seeed Studio 4G Antenna Kit when the same reTerminal DM 4G module build needs both GNSS and cellular antennas.Features GPS antenna kit for reTerminal DM and GNSS positioning tasks. GPS, BD/BeiDou, and GLONASS navigation systems supported according to the official specification. 1575.42MHz GPS, 1561MHz BeiDou, and 1602MHz GLONASS frequency ranges. Active gain up to 23 +/- 3dB for GPS at a 2000mm RG174 line. 50 ohm impedance, RHCP polarization, and 2.0 max VSWR. Magnetic ABS antenna base with SMA male connector and RG174 cable. -40 C to +85 C operating temperature for robust embedded deployments. Specifications SKU Seeed-110061521 Official SKU 110061521 Product Name GPS Antenna Kit Product Type GNSS antenna kit Compatibility reTerminal DM related GPS/4G module positioning installations Antenna Model 3540A Antenna Dimensions 35mm x 35mm x 4mm Navigation Systems GPS, BD/BeiDou, GLONASS Frequency Range BD: 1561 +/- 2MHz; GPS: 1575.42MHz +/- 2MHz; GLONASS: 1602MHz +/- 5MHz VSWR 2.0 max Bandwidth at 10dB BD: 5MHz; GPS: 5MHz min; GLONASS: 10MHz min Passive Gain 5.0 dB typ at 70mm x 70mm ground plane for BD/GPS/GLONASS Active Gain BD: 22 +/- 3dB; GPS: 23 +/- 3dB; GLONASS: 22 +/- 3dB, typ at 2000mm RG174 line LNA Gain BD/GPS/GLONASS: 22 +/- 3dB typ at 2000mm RG174 line Impedance 50 ohm Polarization RHCP DC Voltage 3.3 +/- 0.3V DC Current 12 +/- 2mA at 3.0V Sheathing ABS black, 50.8mm x 50.8mm x 16.5mm RF Cable RG174, 2000mm length RF Connector SMA male Magnet Nd2FeB magnet Working Temperature -40 C to +85 C Relative Humidity 10% to 95% RH Storage Temperature -55 C to +100 C Vibration Sine sweep at 1.5mm AM, 10-55Hz each axis Product Weight 25g, based on existing global listing data Applications reTerminal DM GNSS expansion: GPS antenna support for 4G/GNSS module builds. Vehicle and asset tracking: satellite positioning for mobile telemetry and measurement systems. Industrial IoT gateways: location data for remote maintenance, logistics, and equipment monitoring. Outdoor edge devices: external GNSS antenna placement with a longer cable path. Prototype and service work: replacement or add-on antenna for compatible GNSS installations. Product ListGPS Antenna Kit for reTerminal DM x 1Other ContentThe official hardware overview shows the antenna body, RF cable, and connector side of the GPS antenna kit. Use it to confirm the cable length, SMA connector, and magnetic antenna base before installation.The connection diagram shows how the GPS Antenna Kit is installed on the reTerminal DM 4G module. Check cable routing before closing the enclosure so GNSS reception and connector strain remain under control.ResourcesThe official electrical and mechanical data is summarized in the specifications above. No separate public datasheet was linked on the official product page, so no product sales link is inserted as a resource.FAQWhich navigation systems does this GPS antenna kit support?It supports GPS, BD/BeiDou, and GLONASS according to the official specification.Is a reTerminal DM or 4G module included?No. This product is the GPS antenna kit; the host device and module are separate.What connector does the kit use?The official material specification lists an SMA male RF connector and RG174 cable.How long is the RF cable?The RG174 RF cable is specified as 2000mm long.Is the kit suitable for rugged environments?Yes, the -40 C to +85 C operating temperature range fits many embedded and industrial projects.
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